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Finding the Fourth Proportional to 331,651.02, 457,679.94 and 188,418.93

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Solution

The fourth proportional to 331,651.02, 457,679.94 and 188,418.93 is: 260,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,651.02 : 457,679.94 = 188,418.93 : x
  2. Step 2: Convert to fraction form
    331,651.02/457,679.94 = 188,418.93/x
  3. Step 3: Cross multiply
    331,651.02x = 457,679.94 × 188,418.93
  4. Step 4: Simplify right side
    331,651.02x = 86,235,562,154.39
  5. Step 5: Solve for x
    x = 86,235,562,154.39/331,651.02
  6. Step 6: Final answer
    x = 260,018.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.